| SINO TONE INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| COBRA SINO MODEL & TECH CO., LIMITED | Private company limited by shares | Dissolved |
| SINGATEC LIMITED | Private company limited by shares | Live |
| SINO WIDE HONGMO TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SINO CONDOR LIMITED | Private company limited by shares | Dissolved |
| SINO GAIN CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINO HARBOUR INVESTMENT CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| SINGS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO-EUROPE TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| SINO-AGROCHEMICAL CO., LIMITED | Private company limited by shares | Live |
| SINO VISION INVESTMENT LIMITED | Private company limited by shares | Live |
| DRAGON SINO (H.K.) LIMITED | Private company limited by shares | Live |
| SINO OCEAN INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO BEAUTY ENTERPRISE LIMITED | Private company limited by shares | Live |
| Sinolink Wines Limited | Private company limited by shares | Live |
| FULL SING HONG LIMITED | Private company limited by shares | Dissolved |
| SINO CAPITAL HONG KONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO DYNAMIC SOLUTIONS LIMITED | Private company limited by shares | Live |
| Sino-TTK Co., Limited | Private company limited by shares | Live |
| HOP SING CONSTRUCTION MATERIAL CO., LIMITED | Private company limited by shares | Live |
| SINO RICH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINOTILL (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| NGAI SING INDUSTRY COMPANY LIMITED | Private company limited by shares | Live |
| SINO TECHNOLOGY SERVICE LIMITED | Private company limited by shares | Live |
| SINOSTAR INT'L ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SINO INVESTMENT AND CONSULTING CO., LIMITED | Private company limited by shares | Live |
| SINO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Sinexa (HK) Limited | Private company limited by shares | Live |
| SINO HIT LIMITED | Private company limited by shares | Dissolved |
| KEUNG SING INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SINO-SHIPBROKING LIMITED | Private company limited by shares | Live |
| SINO GLOBAL INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| GLORIOUS SINO LIMITED | Private company limited by shares | Dissolved |
| SINO RICH INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| CHINA SINO-TV CULTURE CO., LIMITED | Private company limited by shares | Dissolved |
| SINO HOUSE LIMITED | Private company limited by shares | Live |
| SINO FULL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO ASIA GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO PEOPLE LIMITED | Private company limited by shares | Dissolved |
| JUSHI GROUP (HK) SINOSIA COMPOSITE MATERIALS COMPANY LIMITED | Private company limited by shares | Live |
| Sinventa Limited | Private company limited by shares | Live |
| SINO RICH HONG KONG INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO TEAM MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| SINCERE TACT LIMITED | Private company limited by shares | Live |
| SINCERE PRINTING MACHINERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sing Shui (HK) Trading Company Limited | Private company limited by shares | Live |
| SINO GIFT CO., LIMITED | Private company limited by shares | Live |
| SINO KING LIMITED | Private company limited by shares | Live |
| Man Sing Hi-Fi and Video Limited | Private company limited by shares | Live |
| SINO SIGHT LIMITED | Private company limited by shares | Live |
| SINO BIOTECH MINING LIMITED | Private company limited by shares | Live |
| ABLE SINO LIMITED | Private company limited by shares | Dissolved |
| SINO FINDER LIMITED | Private company limited by shares | Live |
| SING LUM KHUI COMPANY LIMITED | Private company limited by shares | Live |
| SINO FARMER FOUNDATION LIMITED | Company limited by guarantee | Live |
| SINO KINGSWAY TRADING LIMITED | Private company limited by shares | Live |
| SINO BEST (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO PROMISE CHINA LIMITED | Private company limited by shares | Live |
| SINCERE SKY LIMITED | Private company limited by shares | Live |
| SINO HARVEST INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OCEAN SINO LIMITED | Private company limited by shares | Dissolved |
| JADE SINO LIMITED | Private company limited by shares | Live |
| SINO PASSION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SINO EMPIRE LIMITED | Private company limited by shares | Live |
| GRAND SINO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINO ASIA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINOINVEST (HK) GROUP LIMITED | Private company limited by shares | Live |
| Sino Energy High-tech Group Holding Limited | Private company limited by shares | Dissolved |
| KAI SING ENGINEERING LIMITED | Private company limited by shares | Live |
| NGAI SING CONSTRUCTION CO., LIMITED | Private company limited by shares | Live |
| GOOD SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO SHOES (HK) LIMITED | Private company limited by shares | Live |
| SING HEI COMPANY LIMITED | Private company limited by shares | Live |
| SINOTAIK LIMITED | Private company limited by shares | Live |
| SINO FORTUNE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BRIGHT SINO PACIFIC LIMITED | Private company limited by shares | Dissolved |
| SINOACE H.K. INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO LONG QUAN MINE LIMITED | Private company limited by shares | Dissolved |
| SINO-CITY SHIPPING&TRADING (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| SINOVA LIMITED | Private company limited by shares | Dissolved |
| SINIKA ELECTRONICS (HK) CO., LIMITED | Private company limited by shares | Live |
| SINO VENTURE GROUP LIMITED | Private company limited by shares | Live |
| SINO GAIN CREATION LIMITED | Private company limited by shares | Dissolved |
| SINO BENEFIT TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO-RES PIPING INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| Sinarin Investment Limited | Private company limited by shares | Live |
| MULTI SINO (HK) LIMITED | Private company limited by shares | Live |
| SINO ELITE EDUCATION INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| KAI SING TOYS LIMITED | Private company limited by shares | Dissolved |
| FOREVER SINO LIMITED | Private company limited by shares | Live |
| SINO CHARMING LIMITED | Private company limited by shares | Dissolved |
| SINOQUALIS LIMITED | Private company limited by shares | Live |
| SINOR INTERNATIONAL INDUSTRIES CO., LIMITED | Private company limited by shares | Dissolved |
| SOENG LUNG SING ELECTRIC (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SINODYNA INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOREST ENTERPRISE LIMITED | Private company limited by shares | Live |
| SINGS WORLD LIMITED | Private company limited by shares | Live |
| SINO ELITE EDUCATION GROUP LIMITED | Private company limited by shares | Live |
| WING SING JEWELLERY CO. LIMITED | Private company limited by shares | Dissolved |
| SINOINFO TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |